Air-feeding apparatus for furnaces.



No. 628,349. Patented July 4, I899 J. S. NEWLIN.

AIR FEEDING APPARATUS FOR FURNACES.

(Application filed June 6, 189B.\

(No Model.)

TH: Noam: PETERS cc mum-Ln'Hu, WASHKNGTON, a. c.

p UNITED STATES PATENT OFFI E.

JOSEPH SIDNEY NEWLIN,

on AUGUSTA, GEORGIA.

AIR-FEEDING APPARATUS. FOR FURNACES.

SPECIFICATION forming part of Letters Patent No. 628,349, dated July 4,1899.

' Application filed June 6, 1898. Serial No- 682,785. (No model.)

To all whom it may concern..-

Be it known that I, JOSEPH SIDNEY NEW= LIN, a citizen of the UnitedStates, residing at Augusta, in the county of Richmond and State ofGeorgia, have invented certain new and useful Improvements inAir-Feeding Apparatus for Furnaces; and I do hereby declare thefollowing to be a-fu'll, clear, and exact description of the invention,such as will enable .others skilled in the art to which it appertains tomake and use the same. My invention relates to improvements in apparatusfor feeding air to boiler-furnaces; and it consists of the novel deviceshereinafter described and claimed.

My said invention will be understood by reference to the accompanyingdrawings, w herechamber A, composed of heavy sheet metal,

such as boiler-iron, and having an enlarged rounded base portion A andupper reduced rectangular portion A, the extreme upper edges of thereduced portion A being bent over outwardly, forming flanges a a. Thesides and bottom of the air-drum A are preferably formed of an integralsheet doubled and bent as shown in Fig. 2, and correspondingly-shapedheads A are fitted upon and securely attached to the ends of the'sheetso bent and extend slightly above the upper edges of the flanges a, a,as shown at a in Figs. 2 and 3. Into the head at one or both ends of thdrum a pipe connection B is fitted for the attachment of anair-pipe Bfrom a blower B or similar means for forcing air into the said drum. 7 IAdeflector D, V-shaped in cross-section, as shown in Fig. 2, and havinglongitudinal side flanges (1 cl, which extend over the side flanges a aon theside edges of the drum, has its tapered edge d extending downwardinto the reduced portion A of the drum A and is supported at its sideedges above the flanges a a on the. upper edges of the drum by means ofadjustable screw-bolts E, having is to enable the width of'the space aat either side of the deflector D to be varied at will by simply turningthe said screw-bolts by means of an iron wrench, which may be insertedthrough the door of the furnace, as will hereinafter more fully appear.

The air-drum above described is fitted into a furnace in some suchmanner as shown in Fig. 1, wherein it will be seen that one end of thesaid drum is supported upon a bracket b ,while the other end issupported simply by the air-inlet pipe 13. The enlarged rounded baseportion of the drum fits closely up under the grate-bars F, While thereduced upper portion of the said drum extends upward between thegrate-bars a sufficient distance to bring the air-outlet openings a dabove the fuel upon said grate-bars, as seen in said Fig. 1.

In operation the air is forced, by means of .a blower B? or othersuitable means, through a feed-pipe B into one end, or, if preferred,into both ends, of the drum A, whence it escapes past the deflector Dout through the. passages a a across the furnace, just above the fueltherein. The efiect of this air being forced into the furnace and blownacross the mass of burning fuel is to create perfect combustion and toprevent the escape of but very little, if any, smoke from the furnace.

I do not wish to limit myself to the form of furnace herein shown, nordo I wish to limit myself to the precise arrangement of the airdrum andits air-supply connections; but

What I claim, and desire to secure by Letters Patent of the UnitedStates, is

1. In an apparatus for assisting combustion in furnaces, the combinationwith a hollow' elongated air-drum having a reduced upper side open atthe upper edge and provided at said edge with outwardly-extendingflanges thereon; of a V-shaped deflector mounted in the said open upperedge of said drum; and means for adjusting said deflector to Vary thesize of the air-outlet, substantially as described.

2. In an apparatus for assisting combustion in furnaces, the combinationwith a hollow elongated drum having a reduced upper side open at-theupper edge and provided at said edge with outwardly-extending flangesthere on; of a V-shaped deflector having oppositelydisposed sideflanges, mounted in the said open upper edge of said drum; andadjustable screw-bolts supporting said deflector upon said flanges ofsaid drum, substantially as described.

3. In an apparatus for assisting combustion in'furnaoes, the combinationwith an elongated air-drum reduced along its upper side flaring outwardat the top and having oppositely-disposed lateral openings at its upperedge; of means for varying the size of said lateral openings; and meansfor admitting air to said drum, substantially as described.

4. In a furnace, the combination with the grate-bars thereof, of anelongated hollow air-drum fixed beneath said grate-bars, and having anarrow portion extending upwardly through the said grate-bars and to ashort distance above the same flaring outward at the top, and havingoppositely-disposed lateral openings at its upper edge; means forvarying the size of said openings, and means for forcing air throughsaid drum, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

JOSEPH SIDNEY NEWLIN.

Witnesses:

A. II. PORTER, J. D. IIIL'roN.

